.tit4 {
  padding: 40px 0;
}
.partb {
  width: 1400px;
  margin: 0 auto;
}
.partb .tab-pb {
  display: flex;
  justify-content: center;
}
.partb .tab-pb .t-i {
  margin: 0 20px;
  cursor: pointer;
}
.partb .tab-pb .t-i > img:nth-child(1) {
  display: block;
}
.partb .tab-pb .t-i > img:nth-child(2) {
  display: none;
}
.partb .tab-pb .t-act > img:nth-child(1) {
  display: none;
}
.partb .tab-pb .t-act > img:nth-child(2) {
  display: block;
}
.partb .pb-swiper {
  width: 1300px;
  margin: 50px 0;
}
.partb .pb-swiper .pbs-item {
  display: flex;
}
.partb .pb-swiper .pb-img {
  width: 600px;
  margin-right: 50px;
}
.partb .pb-swiper .pb-right {
  display: flex;
  flex-direction: column;
}
.partb .pb-swiper .pb-right img {
  width: 300px;
}
.partb .pb-swiper .pbr-top {
  display: flex;
  justify-content: space-between;
}
.partb .pb-swiper .pbr-img {
  position: relative;
  width: 300px;
}
.partb .pb-swiper .pbr-img > img {
  width: 100%;
}
.partb .pb-swiper .pbr-img .pbr-tit {
  position: absolute;
  width: 100%;
  height: 100%;
  padding: 50px;
  box-sizing: border-box;
  top: 0;
  left: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  background: rgba(0, 0, 0, 0.5);
  transition: 0.5s;
  opacity: 0;
}
.partb .pb-swiper .pbr-img .pbr-tit a {
  color: #fff;
  font-size: 16px;
}
.partb .pb-swiper .pbr-img .pbr-tit-show {
  opacity: 1;
}
.partb .pb-swiper .pbr-bottom {
  margin-top: 20px;
}
.partb .pb-swiper .pbr-bottom li {
  display: flex;
  align-items: center;
  font-size: 16px;
  padding: 20px 0;
  border-bottom: 1px dashed #000;
}
.partb .pb-swiper .dot {
  width: 5px;
  height: 5px;
  margin-right: 20px;
  background-color: #4dc06b;
}
.partb .pb-swiper .pbr-desc {
  width: 600px;
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
}
.nf {
  width: 100%;
  background: url(https://nfcms-mainsiteoss.188-5633.com/news/__tpl_asset/zt/img/20230210gzlfzkgd_mdbg.jpg) center / 100% no-repeat;
  height: 698px;
}
.tit3 {
  padding: 40px 0 0;
}
.nf-top {
  display: flex;
  justify-content: space-around;
  width: 1400px;
  margin: 0 auto;
}
.nf-img {
  border: 5px solid #79c4f1;
  height: 285px;
}
.nf-main {
  background: url(https://nfcms-mainsiteoss.188-5633.com/news/__tpl_asset/zt/img/20230210gzlfzkgd_xcld_abs.png) center / 100% no-repeat;
  width: 721px;
  height: 285px;
  padding: 30px 50px;
  box-sizing: border-box;
  overflow: hidden;
}
.nfm-tit {
  font-size: 24px;
  font-weight: bold;
  color: #fff;
  margin-bottom: 20px;
}
.nfm-desc {
  font-size: 16px;
  color: #fff;
}
.nf-bottom {
  display: flex;
  justify-content: space-around;
  font-size: 16px;
  color: #fff;
  line-height: 48px;
  flex-wrap: wrap;
  width: 1400px;
  margin: 20px auto 0;
  overflow: hidden;
}
.nf-bottom .nf-li {
  width: 600px;
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
  margin-top: 10px;
}
.nf-bottom .nf-li a {
  font-size: 16px;
  color: #fff;
  line-height: 48px;
}